Mixed teams of eight members were entered from each school, with ages ranging from nine to 11.

The cheering of around 100 spectators accompanied the first event 'float race', with competitors using giant floats to swim from the shallow end to the deep end, picking up bricks and team-mates on the way.

This was followed by the 'obstacle race', a rowdy 'relay race' which had the kids literally jumping through hoops and the 'collection race', all involving a frenzy of splashing water.

By the final event 'treasure hunt' there were whoops of delight from supporters of winning teams.

Overall winners of the Thornaby Town Council-sponsored event were St Patrick's RC, who received an 'It's A Knockout' shield.

Everyone who participated received a healthy food goody bag, drink, medal, certificate and two free swim passes for any Active Life Centre with a pool.

Event organiser, Tees Active's swimming development manager Carol Grainger said: "The event has proven to be very enjoyable for everyone that participated so we're all pleased."

"Importantly, we wanted to illustrate that swimming can be fun as well as good for your health and the 'It's A Knockout' theme conveyed this message perfectly."

For more information on swimming or the Bubble Super Swim Scheme, contact Thornaby Pool on (01642) 616 727, Billingham Forum on (01642) 551 381 and Splash on (01642) 527 272.